Cover for a portion of a toothbrush



FIG. 1 is a perspective view of a cover for a portion of a toothbrush embodying the new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a front elevation view thereof; and,

FIG. 7 is a rear elevation view thereof.

The portions shown in phantom lines in FIGS. 1, 4, 5 and 7 illustrate environmental structure only and form no part of the claimed design. 

CLAIM The ornamental design for a cover for a portion of a toothbrush, as shown and described. 